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The Blue Jackets won 4-1.This was a surprise start for Ward, but it makes sense the Blackhawks want to get a good look at him before the season. With the status of Corey Crawford (upper body) still up in the air, Ward could be the team's No. 1 goaltender to open the season. He went 23-14-4 with a .906 save percentage and 2.73 GAA in 43 games with the Hurricanes last season. More News...

If the air is stale and has higher levels of carbon dioxide, pilots can make it harder to make manoeuvres and handle emergencies like engine failure on take-off, which could be fatal to passengers.Getty - Contributor Pilots are affected by the amount of carbon dioxide in the air in the cockpitHigher levels of carbon dioxide can be caused by bleed air in the cabin, when engine oil or other harmful chemicals leak into the plane through faults in the plane's engine seals.In a study by Harvard scientists, published in the Journal of Exposure Science and Environmental Epidemiology, 30 commercial airline pilots flew an Airbus A320 simulator for an hour and a half at a time under varying air conditions.The tests were supervised by a pilot examiner from the Federal Aviation Administration (FAA), the body in the USA that regulates the plane industry.They were instructed to carry out 21 different flying manoeuvres, including making a steep turn, recovering from stalling and circling a plane while maintaining a constant altitude.Getty - Contributor A study shows that pilots are less likely to make successful manoeuvres when there's more carbon dioxide in the airResults showed that the pilots were more 60 per cent likely to pass the tests when the concentrations of carbon dioxide in the air was 700 parts per million (ppm) in the air, compared with 2,500ppm, the highest level in the test.At 1,500ppm they were 50 per cent more likely to make the manoeuvres successfully than at 2,500ppm.The scientists wrote: “Our testing conditions, and the results, therefore, do not necessarily reflect actual conditions in all planes nor do they necessarily reflect how pilots would perform during an actual flight.“They do, however, suggest that there are important direct effects of carbon dioxide on pilot performance at concentrations that are occasionally observed on the flight deck and in the cabin.”WIN A FREE HOLIDAY Fancy a free holiday to Disneyland or Dubai? Vote in our Sun Travel Awards and enter our prize draw fo...